How far do you think Catfish travel? I'm guessing that when they're stocked, it takes a little time to find a good spot to hang around, but when they mature do they stay in the same general area? I know that water temp is going to have alot to do with it, but in that case are they just going to change depths or find a warmer or cooler part of the lake? Do you think they have boundaries and they just swim around in the same areas? I've watched fish in an aquarium and some of them will swim the same path over and over. There's lots of other places in that aquarium that they could go, but they stick to the path until something comes in and disrupts their routine.